The Metropolitan Police Federation is a staff association that represents the interests of all police in the Metropolitan Police Service

Metropolitan Police Service

The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

 up to the rank of Chief Inspector. It seeks to ensure that the Metropolitan Police Service operates to the highest professional standards and that it is fully accountable.

The Metropolitan Police Federation is affiliated to the Police Federation of England and Wales

Police Federation of England and Wales

The Police Federation of England and Wales is the representative body to which all police officers in England and Wales up to and including the rank of Chief Inspector belong. There are 141,000 members as of July 2009...

.